22497746 has 8 divisors (see below), whose sum is σ = 33916800. Its totient is φ = 11192148.

The previous prime is 22497737. The next prime is 22497751. The reversal of 22497746 is 64779422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×22497746² = 1012297150161032, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27866 + ... + 28661.

It is an arithmetic number, because the mean of its divisors is an integer number (4239600).

Almost surely, 2^22497746 is an apocalyptic number.

22497746 is a deficient number, since it is larger than the sum of its proper divisors (11419054).

22497746 is a wasteful number, since it uses less digits than its factorization.

22497746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56728.

The product of its digits is 169344, while the sum is 41.

The square root of 22497746 is about 4743.1788918404. The cubic root of 22497746 is about 282.3013812597.

The spelling of 22497746 in words is "twenty-two million, four hundred ninety-seven thousand, seven hundred forty-six".